Tests on Tuesday revealed the partial tear -- also known as a Grade 2 strain -- which is generally a multiple-week injury because of the risk of additional damage. So despite Wilson's public and private desire to play through it, there was virtually no chance the Broncos would let him on the field Sunday.
Backup Brett Rypien will make his second career start in Wilson's place against the Jets.
Wilson lobbied emphatically to play, sources say, believing he's played through worse while in Seattle. He moved around and threw during the week, and he felt he could protect himself well enough to play.
The original plan was for Wilson to work out a bit or throw on Saturday morning, but by that time the decision had been made. It's the team's medical staff's job to protect Wilson from himself, and he's now out.
Wilson also received an injection earlier this month for a latissimus dorsi strain, but that injury did not appear on this week's injury report, indicating he's no longer receiving treatment for it and it's not an issue.
He's also been banged up in recent starts, affecting his performance. Now, in steps Rypien while Wilson heals.